1. Professor and Chair, School of Civil Engineering, Suranaree Univ. of Technology, 111 University Ave., Muang District, Nakhon Ratchasima 30000, Thailand (corresponding author).
2. Post-Graduate Researcher, School of Civil Engineering, Suranaree Univ. of Technology, 111 University Ave., Muang District, Nakhon Ratchasima 30000, Thailand.
3. Assistant Professor, School of Civil Engineering, Suranaree Univ. of Technology, 111 University Ave., Muang District, Nakhon Ratchasima 30000, Thailand.